Description
The rotary hook and the double rotary hook are the most robust and low-maintenance systems, primarily used in high-end sewing machines and industrial sewing machines.
Prym offers matching spools for the small rotary hook and the double rotary hook, available in metal (five pieces) or transparent plastic (four pieces).
The spools made of transparent plastic help keep track of the color and supply of the thread, while the metal spools have a significantly longer lifespan due to their inherent robustness.
Manufacturers of sewing machines that feature this system include SINGER, Dürkopp, PFAFF, and MEISTER.
Diameter 21.2mm, Height 9.2mm